There's a terrific development of call in
Excalibur. First the sword in the stone bit, then the sealing of the
call after Arthur's first battle. He has
subdued his enemy, a nobleman, and they are standing together in a
moat. People shout to have Arthur made king, but the noble (is he
played by Patrick Stewart?) he can't be king--he's not even a
knight. So Arthur gives the disarmed knight his own sword and,
kneeling and offering his head and neck, says, "Then knight
me." Great scene. (submitted by Michael Hudson, Cullowhee NC)